Wall-valve for pneumatic cleaning systems.



J. T. HOPE. WALL VALVE FOR PNEUMATIG CLEANING SYSTEMS. f

APlLIUATION FILBB DBU.22,1909.

Patented J an. 3, 1911.

1 UNITED SIFAU'ES` PTENT OFFICE.

Y .iori'nr.' HOPE, or Kansas Grrr, MISSOURI..

WALL-VALVE FOB PNEUMATIC CLEANING# SYSTEMS.`

, suction, will automatically close and remain closed when thejxturewith which it is associated is not in use, and which under the ,blastsystem of cleaning can be locked in closed position.

'I o this end the invention consists in certain novel and peculiarfeatures of construction and organization as hereinafter described andclaimed; and in order that. it maybe fully understood reference is to behad to :the accompanying idrawing, in

,which- Figure 1, -is a view showing apart of a building in section anda part of a pneu- I maticcleaning system embodying my invention,y inelevation. Fig. 2, is an enlarged 'central vertical section of a part ofthe cleaning apparatus and building. Fig., 3, is a '-face view of avalve-equipped wall iiXture embodying my invention. Fig. 4,. is asection on the line IV-IV of Fig. 1. Fig. 5,

is a view' on a reduced scale, of a slightly modiied form ci' connectionbetween the stand-pipe and the iixture. Fig. 6, is a perspective View ofa key for securing the fixture in or removing it from position.

In the said drawing, 1-1 'indicate two ioors of a building, and 2 alroom wall oi such building.

3 is a pipe adapted to be connected to any suitable apparatus forcreating suction in or' a blast of air through the pipe. 4 is amountedbn said pipe and 5 is a stand-pipe connected at. its lower end tosaid coupling and extending, by preference, up

through 'the partitionof adjacent rooms of4 the building if the cleaningsystem is installed, at the timev of the erection of the building or upthrough the closets of the building 'if suoli closets are arrangedarranged between a pairof partition walls Y" Specification of LettersPatent.

one: 4above the other, and at a suitable distance above each Hoor thestand pipe is equipped with a coupling 6. It thev stand-pipe 1s rammedJan. 3,1911.

. ,Animation inea December 22, '19409. y `seran ne. 534,563.

and the studding, the elbows 7 of the coupliiigs 6, will preferably beequipped with shortA threaded bushings 8 to receive the rearwardlyprojecting threaded tubes 9 of hollow fixtures l0, set in one of thewalls of the partition, the tubes terminating short of 'the outer vfacesof the fixtures so as to provide seats for the valves l1 hinged to andwithin the fixtures above the tubes, the hinge-pins 12, extendingthrough the Shanks 13 of the valves and through a pair of lugs 14secured rigidly to and within the tintures,A

and in order that said fixtures may be conveniently secured in-position,they are each provided with a pair of lugs 15, for convenient engagementby akey, consisting, by

. preference, of a handle 16, and a ,tubular stein 17 of proper size toextend loosely over tubes 9, and provided` at its inner end withdiametrically opposite notches 18 for engagement with lugs 15.

Vhere the building is of such character that the stand-pipe can bearranged in superpose'd closets, the fixtures will be disposed a greaterdistance from the couplings, and in this case, the latter will beequipped with shortpipes 19, provided with reducers 20 at their outerends for engagement. with the tubes ot' the fixtures.

Ordinarily there will be only a single {ixt-iire to a floor, and aflexible tube 2l (shown by dotted lines) equipped with an ordinarycleaning tool (not shown) to be passed over the carpet, iioor or otherobject to be cleaned, will be fitted upon the tube 9, the valve beingfirst opened as indicated by dotted lines Fig. 2, to accommodate saidtube. 'It the xtures of the other floors of the building are not inservice at the same time, their valves are .free to close and gravitatedownward and seat against the outer ends of the corresponding tubes 9,against which they are held with an air-tight relation by the suction'created in the standpipe, it being understood that they are free toclose as soon as the flexible tubes 2l are withdrawn from tubes 9.

If the blast system is employed, the xtures not in use will be closedthrough the instrumentality of the valves and will be locked closedthrough the medium of pivoted catches 22, mounted on each valve, saidthe lugs 23 proJecting inward from the fixtures.

From the above description it will be ap- I.' rIhe combination in apneumatic cleaning system, of a stand pipe provided with a coupling, ahollow fixture secured to said 'coupling and provided with a tube, and avalve carried by and within the'fixture and adapted to seat against theouter end of said tube and close the same.

Q. The combination in a pneumatic cleaning system, of a stand pipeprovided with a coupling, a hollow fixture secured to said couplin andprovided with a tube, a yalve carried by and within the fixture andadaptedto seat against the outer end of said tube and close the same,and means for locking said valve in its closed position.

3. The combination in a pneumatic olea-ning system, of a stand pipeprovided with a coupling, a hollow fixture secured to said couplin andprovided with a tube, a valve carried y and within the fixture andadaptedy to seat against the outer end of said tube and close the same,a. lug projecting :from the fixture, and a pivote'd catch mounted on thevalve and adapted to engage the flug of the xture and lock thekvalve inits closed position.

4. The combination in apneumatic clean- `ing system, of a stand pipeprovided with :1

ing system, of a stand pipe provided with a coupling, `a hollow fixtureprovided with a tube terminating at its outer end short of the face ofthe fixture and projecting at its opposite end rearwardl beyond thefixture and externally threaded?,y means for connecting the threaded endof the tube with the coupling, lugs projecting from the fixture toenable it to be readily turned in securing it in or removing it fromposition, and a valve carried by and Within the fixture to seat againstthe outer end of the tube.

' 6. The combination in a pneumatic cleaning system, of a stand pipeprovided With a coupling, a hollow fixture provided with a tubeterminating at its outer end short of the face of the fixture andprojecting at its opposite end rearwardly beyond the fixture andexternally threaded, means for connecting the threaded end of the tubewith the coupling, lugs projecting from the fixture to enable it to bereadily turned in securing .it in or removingr it from position, a valvecarried by and within. the fixture to seat against the outer end of thetube, and means for locking said valve in its closed position. Intestimony whereof I affix my signature, in the presence of twowitnesses.

JOHN T. HOPE. Titnessesx s HELEN C; RoneERs,. G. Y. THoRPE.

